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Hack The Box has used the two years since its $55 million Series B to expand from a gamified penetration-testing platform into a broader cyber-readiness business. The company says it was approaching 300 employees and more than three million community users when ITPro interviewed CEO Haris Pylarinos in March 2025. Since then, HTB has added defensive-security products, SOC training and AI-agent testing. The opportunity is substantial; the harder question is whether adaptive simulations can prove better operational outcomes, rather than simply generate more engaging training.
What changed after the Series B?
HTB’s Series B was announced in 2023. The company’s own announcement is dated July 19, while contemporaneous reporting referred to the round earlier in the year. Carlyle led the $55 million investment, with participation from Paladin Capital Group, Osage University Partners, Marathon Venture Capital, Brighteye Ventures and Endeavor Catalyst Fund. HTB said the money would support expansion in the US, Europe and Asia-Pacific, a larger go-to-market operation and further development of its hands-on, “gamer-first” products. (HTB funding announcement)
Funding created capacity; it did not, by itself, establish product-market fit, profitability or training effectiveness. In the March 2025 interview published by ITPro on April 15, Pylarinos said staffing was approaching 300, with operations in the UK, Greece and the US. He also cited more than three million community users and enterprise customers including Siemens, Google and Lufthansa. Those are management and interview claims, not audited operating metrics, and they describe the company at that date rather than in August 2026. (ITPro interview)
The Tool Desk
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HTB launched in 2017 around hackable machines, challenges and competitive learning. That identity made it especially attractive to penetration testers and other offensive-security practitioners. The post-Series-B strategy applies the same practical approach to a larger set of jobs:
- Red teams: attack simulation and penetration-testing practice.
- Blue teams and SOCs: detection, triage and response exercises.
- Purple teams: coordinated attack-and-defend scenarios.
- Executives and crisis teams: decisions, communications and escalation under pressure.
- Workforce development: guided learning, role paths, reporting and skills progression.
- Talent sourcing: access to a community whose skills can be assessed through practical work.
- AI security: controlled testing and benchmarking of autonomous or semi-autonomous security agents.
The commercial logic is clear: blue-team, workforce and executive budgets are larger than the specialist penetration-testing niche. The risk is dilution. A platform known for technically demanding offensive labs must demonstrate that its newer products have equivalent depth for defenders, managers and non-specialist employees.
What Crisis Control is supposed to do
HTB launched Crisis Control in late 2024 as an AI-supported breach and crisis-simulation service. Pylarinos described exercises that evolve in real time, introducing new developments or complications as participants respond. Scenarios can be tailored to an organization’s sector and threat environment, using public information such as current news and sector-specific threat trends. The intended audience extends beyond security operators to executives making business, legal, communications and continuity decisions. (ITPro’s account of Crisis Control)
HTB’s reported distinction is important: it says the system is not merely a general-purpose chatbot writing a crisis narrative. The company describes an in-house system that combines current public information with industry context to construct exercises. Public material does not establish the model architecture, model provenance, customer-data policy, retention rules, human approval process or independent evaluation methodology.
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That leaves several practical questions for a buyer:
- Who checks an automatically assembled scenario for technical and factual accuracy?
- Can the system model an organization’s real cloud, identity and network dependencies without receiving sensitive information?
- How does it avoid repetitive “random” events or technically impossible attack chains?
- What safeguards prevent exercise telemetry or company context from being exposed?
- Are participants judged on response quality, or mainly on completion and platform scores?
HTB had not disclosed enough volume in the 2025 interview to claim that Crisis Control reduces breach costs, shortens response times or lowers incident frequency. A dynamic exercise may feel current while still failing to represent an organization’s actual attack surface. It also cannot automatically reproduce the human factors of a real incident: legal privilege, regulator notification, board disagreement, media pressure and customer communication.
AI branding versus measurable readiness
“AI-powered” is useful only when it identifies a measurable capability. In this case, the claimed benefit is adaptive relevance: scenarios can change as a session unfolds and reflect current sector threats. That could make repeat exercises less predictable and reduce the authoring burden.
It does not prove that the system trains generative-AI models, nor that it is superior to a carefully designed human-led tabletop. HTB’s AI Range is a separate product direction focused on testing and training AI security agents. Buyers should not treat Crisis Control and AI Range as interchangeable.
A serious procurement should ask HTB to define baseline and follow-up measures: detection quality, time to triage, escalation accuracy, cross-team coordination, decision quality and exercise completion. User counts and scenario volume are useful reach indicators, but they are not evidence of operational improvement.
The 2026 update: a larger, more defensive HTB
In June 2026, HTB said its community had passed 4.3 million cybersecurity professionals, its Academy catalogue had nearly tripled since 2023, and it had expanded defensive security through Let’s Defend integration and a SOC Range. The company also described expanded workforce-intelligence and operational-readiness capabilities. (HTB’s June 2026 update)
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These are current company claims and show that the broadening described in 2025 continued. They do not independently establish revenue growth, retention, profitability or superior learning outcomes. Nor does “4.3 million” necessarily mean active or paying customers.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How the product architecture fits together
HTB now presents a collection of products rather than one uniform subscription:
- Academy: guided technical courses, role paths, practical exercises and certification preparation.
- Labs: open-ended machines, challenges and practice environments.
- Enterprise Platform: administration, reporting, training and workforce development.
- Threat Range: more realistic attack-and-defence environments.
- Crisis Control: adaptive crisis and tabletop exercises.
- SOC Range and defensive products: analyst-readiness and blue-team practice.
- Talent Search: recruitment based on skills-validated community performance.
- AI Range: evaluation and training environments for AI security agents.
These are not automatically included in one plan. HTB explicitly says individual Academy and Labs subscriptions are separate. Its enterprise pages describe annual, quote-based Grow and Scale packages, with add-ons such as Crisis Control, Talent Search, event credits and custom-machine work. Public pricing pages have shown different lab-count claims—1,700-plus on one page and 1,400-plus on another—so inventory numbers should be checked on the live page rather than treated as permanent.
What it costs and who should buy it
Official HTB help material observed in August 2026 listed Academy Starter at $18 a month, Gold at $38 and Platinum at $68. A student plan was listed at $8 a month, subject to eligibility; annual Silver, Gold and certification pricing were also published. Labs offered a free tier and VIP+ at $25 a month or $223 a year. Prices are in US dollars, may exclude tax and can change. (Academy plans; Labs plans)
For an individual, the decision is mainly about structure. Academy suits a learner who needs guided progression; Labs suits someone comfortable finding and exploiting machines independently. A beginner or mixed-skill team may find TryHackMe Business easier to onboard, with guided learning and business-oriented SOC and tabletop features. A specialist red team may instead prefer a narrower exploit-development or infrastructure-focused range.
For an enterprise, compare role coverage, integrations, customization, private-environment options, data governance, support and evidence of skill transfer. Ask whether the organization needs technical labs, SOC validation, an executive exercise, recruitment or AI-agent testing; these are different buying jobs. Quote-based pricing also makes a like-for-like cost comparison essential.
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The financial and strategic test
Pylarinos discussed cash efficiency, positive cash flow and no immediate need for another fundraise in the ITPro interview. Those statements should remain attributed: no audited financial statements were identified in the supplied material. Likewise, the Series B should be understood as an investment in expansion capacity, not proof that the capital caused every later metric.
HTB’s strongest defensible story is strategic rather than financial. It has broadened beyond red-team training, added adaptive crisis exercises and moved into defensive security, workforce intelligence and AI-agent evaluation. Its next test is whether customers renew because their teams detect, coordinate and decide better—not because the platform has more users or a more prominent AI label.
The Bottom Line
Bottom line: Hack The Box has become materially broader since its Series B, and its red-team heritage gives the expansion a credible technical foundation. But the company’s “powerhouse” claim should be judged by independently measured readiness outcomes, financial disclosures and customer retention—not by headcount, community totals or AI terminology alone.
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